Remove deprecated Slack attachments framework (#38139)

homeassistant/components/slack/notify.py

@@ -24,7 +24,6 @@ import homeassistant.helpers.template as template
 
 _LOGGER = logging.getLogger(__name__)
 
-ATTR_ATTACHMENTS = "attachments"
 ATTR_BLOCKS = "blocks"
 ATTR_BLOCKS_TEMPLATE = "blocks_template"
 ATTR_FILE = "file"
@@ -52,11 +51,7 @@ DATA_FILE_SCHEMA = vol.Schema(
 )
 
 DATA_TEXT_ONLY_SCHEMA = vol.Schema(
-    {
-        vol.Optional(ATTR_ATTACHMENTS): list,
-        vol.Optional(ATTR_BLOCKS): list,
-        vol.Optional(ATTR_BLOCKS_TEMPLATE): list,
-    }
+    {vol.Optional(ATTR_BLOCKS): list, vol.Optional(ATTR_BLOCKS_TEMPLATE): list}
 )
 
 DATA_SCHEMA = vol.All(
@@ -196,15 +191,12 @@ class SlackNotificationService(BaseNotificationService):
         except ClientError as err:
             _LOGGER.error("Error while uploading file message: %s", err)
 
-    async def _async_send_text_only_message(
-        self, targets, message, title, attachments, blocks
-    ):
+    async def _async_send_text_only_message(self, targets, message, title, blocks):
         """Send a text-only message."""
         tasks = {
             target: self._client.chat_postMessage(
                 channel=target,
                 text=message,
-                attachments=attachments,
                 blocks=blocks,
                 icon_emoji=self._icon,
                 link_names=True,
@@ -242,15 +234,6 @@ class SlackNotificationService(BaseNotificationService):
 
         # Message Type 1: A text-only message
         if ATTR_FILE not in data:
-            attachments = data.get(ATTR_ATTACHMENTS, {})
-            if attachments:
-                _LOGGER.warning(
-                    "Attachments are deprecated and part of Slack's legacy API; "
-                    "support for them will be dropped in 0.114.0. In most cases, "
-                    "Blocks should be used instead: "
-                    "https://www.home-assistant.io/integrations/slack/"
-                )
-
             if ATTR_BLOCKS_TEMPLATE in data:
                 blocks = _async_templatize_blocks(self.hass, data[ATTR_BLOCKS_TEMPLATE])
             elif ATTR_BLOCKS in data:
@@ -259,7 +242,7 @@ class SlackNotificationService(BaseNotificationService):
                 blocks = {}
 
             return await self._async_send_text_only_message(
-                targets, message, title, attachments, blocks
+                targets, message, title, blocks
             )
 
         # Message Type 2: A message that uploads a remote file